Take a look at the attached. You do not need to replace the ECU when you are doing this. If you are going to get a new ignition switch that already has a key but to it then you are going to have to simply perform the reprogram function. The ignition switch itself is not part of the anti-theft process. Only the magnet in the key and the receiver are the important part of this.
So that means you just need to get the key and switch then program them to the vehicle. However, they will no longer unlock your door so you will have to recode the doors and trunk to match this new key so that they all work.
Let me know if you have questions. Thanks
Images (Click to enlarge)
Saturday, August 8th, 2020 AT 12:49 PM